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VT8-600_1000-en-US_AA 10/18
5.10 Resistance Measurements
CAUTION: Switch OFF power to the device under test before measuring. Do not test on
circuits or devices where 60VDC or 30VAC is present.
1.
Insert the black test lead banana plug into the negative (COM) jack. Insert the red test
lead banana plug into the positive (V/Ω) jack.
2.
Turn the Function Switch to the
position.
3.
Press MODE to select the Ω icon on the display.
4.
Touch the test probe tips across the circuit or part
under test. It is best to disconnect one side of the
part under test so the rest of the circuit will not
interfere with the resistance reading.
5.
For resistance values, use the REL button (Relative
mode ) to remove test lead residual resistance.
6.
Read the resistance value in the display. The display
will indicate the proper decimal point and value. If
the reading is out of range, the OL display icon will
appear.
Fig 5-4 RESISTANCE MEASUREMENTS
Resistance Measurement Notes:
The display will show “OL” when an open circuit is detected or if the resistance > maximum
range.
The test leads introduce an error of approx. 0.1Ω
～
0.2Ω for low resistance measurements.
Use the Relative mode to obtain accurate readings. Short the test leads together, press the
REL button, and then measure a low resistance. The meter subtracts the short-circuit value
from the reading.
If the test lead resistance of probe is > 0.5Ω when shorted, inspect the test leads and the
connection.
It may take several seconds for the reading to stabilize when measuring resistance >1MΩ.
This is normal operation.
For personal safety, do not measure a circuit with voltages > 30V DC or AC.
